Why can you see yourself in a mirror?

• light refracts off the mirror

• light reflects off the mirror

• light transmits off the the mirror

• light transfers off the mirror

Tags

NGSS.MS-PS4-2

What does B represent?

• amplitude

• crest

• trough

• wavelength

Tags

NGSS.MS-PS4-1

The distance shown in the diagram is known as the

• amplitude

• crest

• trough

• wavelength

Tags

NGSS.MS-PS4-1

Which area of this sound wave represents a compression?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

The distance shown in the diagram is known as the

• amplitude

• crest

• trough

• wavelength

Tags

NGSS.MS-PS4-1

Sound waves are compression waves, as seen here. The areas of low pressure within a sound wave, area A for example, are called

• amplitudes

• frequencies

• rarefactions

• troughs

Tags

NGSS.MS-PS4-1

The tuning fork is producing a wave that contains compressions and rarefactions. It is a ________ wave.

• compaction

• transverse

• latitudinal

• longitudinal

Tags

NGSS.MS-PS4-1

Sound waves are longitudinal waves. The height or intensity of the wave shows its amplitude, or the energy in the wave. In the diagram of a sound wave, the section labeled B shows the area of the sound wave with the

• most amplitude and compression

• most amplitude and rarefaction

• least amplitude and compression

• least amplitude and rarefaction

Answer explanation

The answer is most amplitude and compression. Compressions in a sound wave are when vibrating particles are close together. Amplitude is a measure of the energy of the wave.

Tags

NGSS.MS-PS4-1

Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy transport. Identify another name for this type of wave motion.

• transverse waves

• pressure waves

• longitudinal waves

• electromagnetic waves

In a _____________ wave, vibrations are perpendicular to the direction of the wave motion. In a _____________ wave, vibrations are parallel to the direction of the wave motion.

• transverse, standing

• standing, transverse

• longitudinal, transverse

• transverse, longitudinal